Wood-type golf club head

• US 5,080,366 A
• Filed: 05/31/1990
• Issued: 01/14/1992
• Est. Priority Date: 06/12/1989
• Status: Expired due to Fees

• Current Assignee: Yokohama Rubber Company Limited
• Original Assignee: Yokohama Rubber Company Limited
• Inventors: Ninomiya, Toshio, Okumoto, Takaharu
• Primary Examiner(s): Grieb, William H.
• Application Number:
  US07/531,090
• Time in Patent Office: 593 Days
• Field of Search: 273/167 R, 273/167 A, 273/167 D, 273/167 F, 273/167 H, 273/172, 273/173
• US Class Current: 473/348
• CPC Class Codes: A63B 2209/02 with reinforcing fibres, e.g. carbon, polyamide fibres
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/045 Strengthening ribs
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like

Abstract

A wood-type golf club head molded from a fiber-reinforced resin having at least one fin equipped with at least one hook fixed by brazing to the inner side surface of the metal sole plate so that the fiber-reinforced resin of the head will flow into and under the hook of the fin during molding to securely bond the club head to the sole plate.

Claims

1. In a golf club head of the wood-type having a club head main body molded from a fiber-reinforced resin, a sole plate made of a metal fixed to the bottom surface of the club head body and at least one fin having at least one hook portion therein fixed to and extending upwardly from the inner side surface of the sole plate, whereby when said body is molded, the resin thereof will flow into and under the hook portion of the fin to anchor the sole plate to the body, the improvement wherein said fin is fixed to said sole plate by brazing.

2. The golf club head of claim 1, having at least two of said fins that cross one another to form a cruciform structure, each fin having at least one hook portion.

3. The golf club head of claim 1, wherein the material used to fix the fin to the plate is selected from the group consisting of silver solder, copper solder, brass solder, phosphor bronze solder, nickel solder and aluminum solder.

4. The golf club head of claim 1, wherein said sole plate is made of nickel silver.

5. The golf club head of claim 1, wherein the fiber of the fiber-reinforced resin is selected from the group consisting of carbon fiber, glass fiber and aromatic polyamide fiber.

6. The golf club head of claim 1, wherein the resin is a themosetting resin selected from the group consisting of an unsaturated polyester resin, a vinyl ester resin and an epoxy resin.